Features: Easy to use stable performance. It is used to repair the mouse, and makes it work properly. Replace old, broken or non-working wheel board. The problem that the mouse wheel fails or the wheel doesnot turn is generally an encoder problem, and you can purchase a rollerplate to replace it. This is used for G603 mouse. Used,but it can works in goodcondition. brand new and high quality Specifications: for: LogitechG603 Mouse Color: Kailh for GM 8.0 micro-motion, TTC dust-proof gold micro-motion, Kailh red dot micro-motion, Kailh black dot micro-motion (optional) Material: PVC Quantity: 1PC Note: Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x G603 Mouse Encoder Wheel Click Switches Board